192706269138 has 48 divisors (see below), whose sum is σ = 423696719160. Its totient is φ = 63288594432.

The previous prime is 192706269121. The next prime is 192706269139. The reversal of 192706269138 is 831962607291.

192706269138 is a `hidden beast` number, since 1 + 9 + 2 + 7 + 0 + 626 + 9 + 1 + 3 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 192293651169 + 412617969 = 438513^2 + 20313^2 .

It is not an unprimeable number, because it can be changed into a prime (192706269139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1175298 + ... + 1329186.

Almost surely, 2^192706269138 is an apocalyptic number.

192706269138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

192706269138 is an abundant number, since it is smaller than the sum of its proper divisors (230990450022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

192706269138 is a wasteful number, since it uses less digits than its factorization.

192706269138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154923 (or 154920 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 192706269138 in words is "one hundred ninety-two billion, seven hundred six million, two hundred sixty-nine thousand, one hundred thirty-eight".